一种改进的基于椭圆曲线的数字签名方案  

A Improvement of Digital Signature Plan Based on Elliptic Curve

作　　者：孙剑[1] 徐莹[1] 

机构地区：[1]黑龙江科技学院信息网络中心理学院,黑龙江哈尔滨150027

出　　处：《工业控制计算机》2012年第6期66-67,69,共3页Industrial Control Computer

摘　　要：相对于现行的RSA密码体制,椭圆曲线密码体制由于"密钥短、安全性高"受到越来越广泛的关注。而影响这类签名方案效率的最主要因素之一是模逆操作,国内外都提出了各种改进的无需进行模逆操作的椭圆曲线数字签名方案。虽然高伟等提出T-ECDSA是无需模逆操作的,将指出它是不安全的,恶意攻击者可以成功地伪造有效的数字签名。随后提出了一种新的无需进行模逆操作的基于ECC的签名方案,提高了签名速度,并验证了新方案的安全性和有效性。Comparing to the current RSA cryptosystem,elliptic curve cryptographt is becoming more and more concerned because of its ＂short key,high safety＂.One of the most important factors that affecting the efficiency of such signature schemes is reverse-mode operation.All kinds of improved Elliptic Curve Digital Signature Scheme with no need for reverse-mode oper- ation has been put forward around the word.Although Gao Wei aclaimed that T-ECDSA does not need inversion operation, this paper pointed out that it is not safe.The malicious attacker can successfully forge a valid digital signature.Then pro-posed a new ECC-based signature scheme with no need for inversion operation.

关 键 词：数字签名 椭圆曲线数字签名 RSA密码体制 

分 类 号：TN918.1[电子电信—通信与信息系统]